<?php
class IpUtil{
	public static function getRealIP()
	{
		if (!empty($_SERVER['HTTP_CLIENT_IP']))   //check ip from share internet
		{
			$ip=$_SERVER['HTTP_CLIENT_IP'];
		} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {  //to check ip is pass from proxy
			$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
		} else {
			$ip=$_SERVER['REMOTE_ADDR'];
		}
		return $ip;
	}
}